TANDBERG E5714 DSNG Voyager, Reference Manual, Page: 76 / 314

Options and Upgrades
Page 3-28 Reference Guide: E57xx DSNG and DENG Voyager Encoder
ST.RE.E10076.3
3.12 Triax Option (M2/EOM2/TRIAX)
3.12.1 Introduction
This option is for the E5750 Encoder only.
The card is designed to work in conjunction with the COFDM Modulator
fitted to the E5750 Encoder in order to provide a TRIAX connection to
external equipment.
3.12.2 Description
The card takes in 70 MHz IF from the modulator and the 48 Vdc power
from an external power supply. It also accepts control information from the
control bus of the E5750.
The 70 MHz signal is passed through onto the TRIAX output connector. The
DC power is added to this so that external, downstream equipment (SHF
up-converter and power amplifier) that is typically mounted close to the
transmit antenna can be powered.
Additionally, the TRIAX adaptor also makes it possible to control the
external equipment from the front panel of the E5750. This is achieved
using a data carrier at 400 MHz. Modems are fitted internally within the
TRIAX adaptor and the external equipment, making it possible to set the
final up-converter frequency directly from the front panel of the E5750.